Stop device for type-writers.



E. B. GRAM.

STOP DEVICE FOR TYPE WRITERS.

APPLIOATION rmzn 11.27, 1904.

Patented Feb. 23, 1909.

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B. B. 01mm. STOP DEVICE FOR TYPE WRITERS.

APPLIOATIOH FILED APR, 1904.

Patented Feb. 23, 1909.

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APPLICATION FILED APB.27, 1904 Patented Feb. 23, 1909.

3 SHEETS-SHEET 3.

, UNITED STATES PATENT orrron.

EDWIN B. CRAM, OF BROOKLYN, NEW YORK, ASSIGNOR TO NEW YORK ADDING TYPEWR ITER COMPANY, OF ORANGE, NEW

JERSEY, A CORPORATION OF MISSOURI.

STOP DEVICE FOR TYPENIRITERS.

Specification of Letters Patent.

Patented Feb. 23, 1909.

To all whom it may concern:

- "Be it known that I, EDWIN B. CRAM, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Stop Devices for Type-.Writers, of which the following is a specification.

This invention relates to stop devices for typewriters, and has for its Ob ect the provision of improvements as will be hereinafter set forth.

In-the accompanying drawings, Figure 1 is a plan view of a portion of a typewriter, provided with stop devices embodying the invention; Fig.2 is a rear elevation, partly in section on an enlarged scale; rig. 3 is a bottom plan view of the marginal stops and porting bar; and l ig. 4 is a vertical longitu inal section of the machine. Fig. is a detail view.

The frame supports a transversely mov able carriage 1) having the usual platen P and carrying one or more tabulating stops 4 3 and marginal stops 236, 237, 238 and 239. The tabulating stops are adapted to engage i with movable stops M pivot-ed in the frame and movable into and out of the path of the stops 43 at will. The marginal stops are adapted to engage with the end of an arm 242 upon a rock shaft .244 supported by the frame, to limit the movement of the carriage and also to rock the shaft 244 and thereby o crate an alarm mechanism G for indicating t e a proach of the carriage to a limit of its trave and a mechanism J for locking the type writing mechanism against operation.

' Upon the carriage are fixed a rod 41 and a indefinite posi ions.

bar 38. The former carries the tabulating sto s 43 Which may turn and slide thereon,

an has flat sides which engage flat springs 64 secured to te stops 43 to hold the stops The bar '38 is preferably'square and has a scale on its upper face and grooves 40 on its rear face c0inci dent with the graduations of the scale. The stops 43 preferably extend horizontally WhGIlllOtlIl use, and, when required for use, a stopzis turned down into a groove 40 and is thereby held in position. A lever M is thrown into and out of position to engage the stops 43 by pulling or pushing, by any suitable means, upon a rod 17 pivoted to its lower end. .The details of the tabulating apparatus are described in my application Serial No. 188,554 filed January 11, 1904.

Looking and alarm mechanisms may be constructed to cooperate with the stops as hereinafter described.

The sliding marginal stops 236, 237, 238 and 239 are on the bar 38 and the stops 236, 237 have to do with the ending of a line and the margin at the right of the paper and the two latter with the beginning of the line and the margin at the left of the paper;

The stop 286 is in the form of a hollow slide 490 which slides upon the bar 38 and is open at the top so that the scale on the bar may be seen. A downward projection 430 fixed to the slide and having a plane face at right angles to the carriage movement is adapted to engage with the arm 242 to limit the left hand movement of the carriage, and a latch 491 is pivoted to the slide forward of the bar 38 and extends beneath the bar to the rear where it is provided with a toe which is normally pressed into one of the slots 40 by the spring 492 between a thumb piece 493 on the latch and the slide.

The stop 237 is in the form of a slide similar to that of the stop 236 havin a pointer 494 over the scale, for indicating t 1e position of the stop, and two downward oppositely disposed cam projections 434 and 437 to engage with the arm 242 and cam it back and forth. Supported at a distance from the front face of the slide is a plate 495 Fig. 5 having the are shaped slots 496 and 499 within which work the pins 500 and 501 fixed in the latch-arm 502 located between the slide and the plate 495. Each of the slots in the plate is struck about the center of the pin in the other slot when that pin is v in its uppermost position so that one pin may turn about the other as a center. The plate 495 also supports the pin 505 which projects into the slot 508, Fig. 2, in the latch arm, to

steady and guide it, the slots comprising sections struck about the centers of the pins 500 and 501 so that the latch arm can swing about either of the pins. A latch 509, similar to the latch 491 described in connection with the stop 236, is fixed to the arm 502 and is normally held in engagement with a notch 40 by a spring 510 secured to the arm and the plate 495. By lateral pressure in either direction upon the handle 511 fixed to the latch-arm, the arm will be swung about one I of the pins 500- 21116501 and the latch 509 moved downwardly out of engagement with a notch 40.

The stop 238 is similar to the stop 237 with the exception that it has but one downward projection 513 and that extends across about oneehalf the vwidth of the bar 38 and has a transverse rightihand face while the left handface is: at an'angle with the movement ofvthe-icarriage so thatijas the carriage is meved to the left the "arm 242 will be 'cammed backwardly. v v

The stop239' is similar to the stop 236' exwcept that its transverse projection 514, ex-

- and 238 are'in abutment the right hand contactfaces.of-theirprojections will .be inline.

To adjust "the margins, sto s 238 and 239,

tendsllaterally so thatwhen the stops 239 determining the left han margin', are moved together until the-pointer carried bythe step 238 indicates the desired position on the scale, which indication will. a ply to the position of the contact face of t 'e'stop 239 as it is inline with'therighthand face of the "stop 238; The stop 239 may then be fixed in position, vas described, and the stop- 238 moved away from it until the pointer indicates the desired position, when it may be f secured. In a similar manner theastops 236 and 237 are located and'fixedinpositionto determine the right hand.margin.,l e,-

The alarm mechanism; comprises a an arm 7 .7440 fixed to the shaft 244 and extending into proximity with and forwardlyof the .tail of the clapper'442 of a bell'443-supportedby, the

frame A, which clapper is normally pressed close to the hell with its tail a ainst the fixed pin .444 by the sprin 445. en the-arm 440 is moved rearwar y it moves the clapper away from the bell against'the spring'445' which, upon the release of the arm, moves the arm to normal, position-and brings the clapper in contact with the bell.. When the arm 440- is moved forwardly the projection 486 fixed to the shaft 244comes against the tail of a spring-487 sup orted bythe frame A,-'which tail is norma y against. the fixed pin 288: Thus the shaft is returned to nor-r mal position by the; spring, 487 or 445 but when in normal position is free from the ressure of either. A suitably arranged. uifer spring 448 takes up the shock when the'carriage stop strikes the arm 242 upon the restoringuef the carriage to the right to" begmanew e.

g The line locking mechanism- Lhas for its object to prevent the'feed ofthe carriage I.

beyond acertain point 'and to prevent type from being operated to write one character on another after that limit has been reached, and comprises an arm 447 fixed to the shaft 244, to which arm is pivoted a lever 450, the forward end of which is nor-'- mally held elevated by the spring 451. -In the end of the lever 450 is a slot454,

works in a slot 473 in the pl haviiig a notch 458 at its frontsportion, for engaging a pin 459 fixed in an arm 462 of a pair of arms, one at each side of the machine,

which are fixedto a rock shaft 466 j ournaled in the frame A, and carry the bail 467mova plunger 469, retracted byspring 470, sli

ably supported by the frame and apin: 472 supported by the frame,, which pin er. front end the plungerextends eyond the front of the machine and carries the pivoted catch 489 adapted to engagethe front of the frame A andat its rear end carries the projection' 475adapted to engage with a rojection 476, a cam face 479 and asho der 481'upon-the forward end of the lever 450. ypressing the plunger until the catch comes against-the front of the machine frame, the

projection 475 will'ride upon the cam face 479, thereby de' ressing-the lever'450 so that the pin 459-wi be freed from the notch 458 and the bail 467 will move frombeneath the key levers under the infiuence, of the spring 468-. By depressing the catch and still further pressing the plunger, the projection 475 will come against the shoulder 481-an'd thus rock the arm 242 backwardly to avoid a stop upon the carriage.

At its To explain the action of the stops with i relation to the arm 242 and its connected mechanisms, assume that a line has been completed and the carriage is moved to the right to begin a new line.- The transverse face of the projection 513, on the stop 238 strikes the arm 242 and the carriage is arrested in position to begin a'normal line. If, however, 1t is desired to write in- .themargin, to number the hnes, make notes or for other purposes, the arm .242 is rocked to the rear, to avoid the projection 513, by suitable means, as for instance, the plunger 469. j The carriage may then be'moved to 1 the right until the face of the stop 239 co l-' holes with the arm 242. This is the limit of movement of the carriage to the right.

Writing may now proceed in the margin, and as the carriage is fed to the left in the usual manner, the arm 242 contacts with the.

left hand face of the projection 513 and is thereby cammed to the rear and upon its release from the projection an alarm is sounded as hereinbefore described, and the beginning of a normal line is indicated. The typewritlng is then carried on as usual until the rear face of the projection 4ST comes in contact with the arm 242 and cams it backwardly so that upon release of the arm from the projection the alarm will be sounded to indicate the approach of the end of a normal line, Further operation brings the front face of the projection 434 of the same step against the arm 242, thercbycamming the arm forwardly and locking the typewriting and carriage feeding mechanism, as hereinbefore described. however, the locking mechanism may be thrown out of action when the typewriting may be carried on in the right hand margin and may be continued until the face of the projection 4130 upon the step 236 .comes against thearm 242. This is the extreme left hand limit of the carriage travel and the carriage may be returned to the right as before.

Without limiting myself to the precise construction shown, what I claim is,-

1. In a typewriter the combination with a bar, of an adjustable device upon said bar, means for securing said device to said bar, mounted upon said device and movable about a plurality described.

2. In a' typewriter, the combination with a bar, of a stop device mounted on and movable longitudinally of said bar, and means movable about either of two pivotal points on said device adapted to engage the bar between said pivotal points to hold said stop device stationary on the bar.

3. In atypewriter, the combination with a bar having a series of transverse grooves formed in one face, ofa stop device comrising a casing mounted on and movable longitudinally of said bar, a plate supported by and at a distance from said casing, and a latch adapted to engage the grooves in the bar pivotally supported between said casing and plate.

4. In a typewriter, the combination with a bar having grooves, of an adjustable device thereon, comprising a casing, a plate supported by, and at a distance from, said casing, an arm supported between said casing and plate by pin and slot connection, a latch adapted to engage with said grooves and fixed to said arm, and 'means for normally holding said latch in engagement with said grooves, substantially as described.

5. In a typewriter, the combination with J a bar provided with a plurality of transverse grooves, a device ad ustably mounted on said bar and comprisinga casing, a plate supported by and at a distance from said casing and provided with are shaped slots 496 and 499, an arm between said casing and plate and having a pin extending into each of said slots in t p ate, and a latch carriei'l contact with said face, means for securing By the plunger 469,

y'ice upon said bar ha\ of pivots, substantially as by sa d arm and adapted to engage with the grooves in the bar, subst ant ially as described.

6. In a typewriter the combination with a frame. of a carriage movable thereon, a bar carried by said carriage, an adjustable device upon said bar having a projection extending below the bar and providcd with a face transverse to the carriage movement, an arm supportml by said frame in position to v said device to said bar and means operable by the exertion of force in any one of a plurality of directions for releasing; said device, substantially as described.

7. In a typewriter the combination with a iran'ie, of a carriage movable thereon, a bar carried by said carriage, an adjustablc'de- '11s; a projection extending below the bar and provided with an engaging; face oblique to the carra e movement, an arm supported by said frame in position to contact with said face, means for securing said device to said bar and means pperableby the exertion of force in any one of a plurality of directions for releasing said device, substantially as described.

8. In a typewriter the combination with a frame, of a carriage movable thereon, a bar carried by said carriage, an adjustable device upon said bar having downwardly projecting engaging faces transverse and oblique to the carriage movement, an arm supported by said frame in position to contact with said face, means for securing said device to said bar and means operable by the exertion 1 0 of force. in any one of a plurality of directions for releasing said device, substantially as descri bed.

9. In a typewriter, the combination with a bar, of an adjustable device thereon hav- 05 ing an engaging surface extending below the bar a second adjustable device upon the bar, am". an indicator upon said second device ad ipted to indicate the relative position on the bar of the engaging surface of the first said device when said devices are abutting, s1 ibstantially as described.

,10. In a typewriter the combination with a bar, of adjustable device thereon having below said bar an engaging face, an indicator 11 upon said device and a second adjustable dev ce upon said bar also having a face, said devices being so constructed that when they are in abutment said fa'ces will be in line, substantially as described.

11. In a typewriter, the combination with a carriage of a stop thereon, a rock shaft, an arm thereon adapted to engage said stop, a lever secured to said rock-shaft and provided with a shoulder, and a plunger cooperating 125 with said shoulder to rock said arm outOf engagement with said stop, substantially as described.

12. In a typewriter, the combination with a carriage carrying oblique and trar sverse 13 a carriage-(tallying oblique and transverse contact-faces, "of a rock shaft mounted in."

the machine frame, an arm thereon adapted engagewithsaid faces, and springs tend lngto move sa1d rock-shaft to-normal posi-'- tion when it is moved therefrom but exert-I mg no-pressure upon said shaft when-it is 1f normal position, substantially as described.-

14; In a-typewriter, the combin'ation'with a rock-shaft and anarm thereon, of a-carriage;,'and oppositely directed cam faces and" atijansverse i'aceupon-said carriage in'posi .tionjto en'gage sald arm near one limit of the carriage travel, substantially as described.

15. In a typewriter, the combination with" afjiockshaft and an arm thereon, ofa can Qriage,=and two oppositely inclinedlcam faces carried. by said-carriage in o'sition-to suecessively engage. said arm an rockfitin oppotravel, substantially as described.

.16. In a typew- 'ter, the combination with v I -gagesaid arm near the other :of said a" rock-shaft and an arm thereon, of a carrlage, opposltely directed cam faces and a transverse face upon said carnage in position to-engage said am near one limit of the car:

riage travel, and two transverse faces and a cam face also carried by the-carriage in tion to engage said arm near the other offthe carriage travel, substantially as described. I

' 17. In a typewriter, the combination with a rock-shaft and an arm, thereon, of a carface up cessive I p r the. -carriage revel, substantially dosite'directions near one limit of the carriage v V p image trayel, two transverse'faces anda'camerases riage, and 0p ositely directed cam faces and a transverse ace upon said carriage in, osl- -tion to engage said arm nearonelimito the carriage travel and thereby ,rocksaidarm backwardly, then forwardly and then collide with. said; arm to stop the carriage, substantiallly as described.

1-18.- .In. a typewriter, the combination with a frock-shaft and an armithereomof-a ems riage, and {two camfac'es and a transverse y 'eng esaidfarmlnear one ,limit of scribed.- v 191,111 a typewriter, 'the' combination with a rock-shaft "'nd-an' armithereon, ofjja carriage, two transverse-facesand a cam face upon said-"carriage in osition tovengag'e said arm near one limit of t e carriage travel, and means .foflmOvmgsaid arm out-of engagement with one of said-transverse faces, sub- 'stan'tially as described.

- 20. In a typewriter, the combination with a rock shaft andan arm thereon, of' a carriagej'oppositely' directed cam faces and a transverse face upon said carriage 'in'position to engage-said armnear. oneili mit Ofthe car-,-

face also-upon said carriage in position to encarriage travel and means -for moving am out ofengagement l with one 0 said transverse faces, substantlally as described.

In testimony whereof I havesignedmy posi name to specification in the'presenc'e of imit two subscribing w tnesses.

, EDWIN B. CRAM. Witnesses W. F. CARTER, ,WALLPER N. DAvIs;

on. said c'arriage' in position to suc-' 

